Brick-press



J. S. ELLIOTT.

BRICK PRESS,

Patented Peb La, v c 1L for:

iUNITED STATES PATENT GFFICE.

JOSIAH S. ELLIOTT, OF VEST NEEDHAM; MASSACHUSETTS.

BRICK-PRESS..

Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, JosrAr-I S. ELLIOTT, of )Vest Needham, in the county of Norfolk and State of Massachusetts, have invented an Improved Brick-Press, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which-u Figure l, is a plan; Fig. 2, a vertical section on the line a', of Fig. l; Figs. 3, 4 and 5, details to be referred to hereafter.

My present invention relates to an improvement in brick presses for forming bricks from sand and lime or other suitable materials and consists in certain details of construction which will be hereafter more fully described in such a manner that others skilled in the art may understand and use my invention.

In the said drawings A, is the bed of the machine from which rises at each end a frame B, (one of which is shown in elevation reduced in Fig. 5) these two frames are connected and braced by a platform F near the middle of their height.

(As this machine is double acting, or having duplicate parts on the two opposite sides, I will describe but one side of it so far as related to those parts which are in duplicate). A heavy ram C, slides up and down in suitable ways in the frame B, and is lifted and dropped at proper intervals by a cam D (shown detached in Fig. 4) which has its edge a formed with the proper inclines, 1, 2, 3, and notches or shoulders 4, 5, 6, to raise the ram C, and hold it a suiiicient time and then to drop it suddenly to give a blow to the material in the mold. A pin CZ, carrying a roller e, projects from the inner side of the ram C and rests on the edge of the cam D. This cam is revolved in the following manner; a stout vertical shaft E, resting in a step o, in the bed A, and having bearings in the platform F, carries a beveled gear Gr, which engages with a pinion (not shown in the drawings) on the shaft z', to which is attached the driving pulley II. The shaft i has its bearings in suitable blocks rising from the platform F. The cam D, has a hub f which fits over the head of the shaft E, but is loose on it, the cam being connected with the back of the gear wheel G, by a pin Z (in section in Fig. 2, and dotted in Fig. 1,) projecting down from the lower ami?, dated February 14, 1860'.

side of the cam, between two pins la placed a short distance apart on the wheel G this allows the cam to have a slight play around the shaft E (for a purpose which will be presently explained) while it `is carried forward by the revolutions of the wheel G. To the lower part of the shaft revolved, the roll passes from one groove to the other by an incline on each side of the wheel which joins the grooves and the mold K, is raised and lowered as required. The mold K, embraces a plunger L, which is a heavy post rising from the bed A,-it serves to form the bottom of the mold, and to receive the concussion of the ram C when it falls on the brick in the mold.

The material is carried to the mold from the hopper M, in the following manner-A platform or bed N, extends across the machine and is secured to the frames B,-above this and centering on the shaft E is a carrier O, (shown in blue, Figs.'2 and 3) which has two recesses p, cut through it to receive the material and carry it to the molds, and is vibrated horizontally about 90 degrees back and forth immediately beneath the hopper M,so that each recess p receives a charge from the hopper M, and carries it to its respective mold K, on the opposite sides of the machine. The platform N, over which the carrier O, slides, serves as a bottom for the recesses 79, while the plain or solid part of the carrier O, between the recesses p, serves as a bottom for the hopper M and cuts off the supply of material when one of the recesses p has carried off its charge.

The proper vibratory motion is given to the carrierO, in the followlno manner: A disk P is secured to the shaft and has cut in its lower face a cam groove r, (in black Fig. 2). Immediately below this is an eccentric arm Q, (in red Figs. 2 and 3,) which is pivoted at s, to the platform N; a pin t, attached to this arm and carrying a roll,

llO

runs in the groove r, a pin u on the carrier o, plays in a slot g in the arm VQ, while a slot fe; near the middle of this arm allows it to vibrate to either side of the shaft E which it embraces in this slot.

The following is the operation of this Inachine: The hopper M, being supplied with suitable material, (say lime and sand mixed in the proper proportions) the shaft i is revolved in the direction of the arrow on the pulley H, this revolves the cam D, in the direction of its arrow, this lifts one of the rams C, and holds it suspended until the carrier O, brings a charge of material over the mold K, which is raised, as on the right hand side of Fig. 2 to receive it-*then as the cam D revolves the roll e drops olii from the shoulder 4, and the ram descends to give a blow on the material forcing it down into the mold K,-the ram is then raised by the incline 2, and again drops as the roll passes the shoulder 5, giving a second blow-then the incline 3 raises the same and holds it suspended for an instant while the carrier O, is vibrated out of the way and to receive another charge from the hopper M, in the recess p. (As the carrier passes off from the mold K, a scraper (not shown in the drawings) attached to the edge fw, of it, takes 0E any superuous material from the top of the mold) the roll e, then drops ofi' from the shoulder 6, and the ram falls to give a third blow to the brick, finishing off its upper surface. The roll m now passes by one of the inclines into the lower groove lo of the wheel I, and the mold K, is lowered over the plunger L on top of which. the finished brick rests-and from which it is removed Ybefore the operation is repeated. The slight play given to the cam D, by means of the pins g, it, is to allow the roll e, when it comes onto the edge of one of the shoulders 4, 5 or- Vmaking bricks, it may however be employed for molding blocks, suitable for window heads sills, &c.

That I claim as my invention and desire to secure by Letters Patent is 1. I claim the carrier O, operated sub stantially as described.

2. I claim clutching the cam D to the wheel Gr in the manner substantially as shown for the purpose specied.

J. S. ELLIOTT. )Vitnessesz WILLIAM FLAGG, VILLIAM H. FLAGG. 

